Ejemplo n.º 1
0
    static void Main(string[] args)
    {
        Action parser = () => {
            int n     = TestData.Length;
            int count = 0;
            for (int i = 0; i < n; ++i)
            {
                decimal dummy;
                count += Decimal.TryParse(TestData[i], out dummy) ? 1 : 0;
            }
        };
        Regex  decimalRegex = new Regex(@"^[0-9]([\.\,][0-9]{1,3})?$");
        Action regex        = () => {
            int n     = TestData.Length;
            int count = 0;
            for (int i = 0; i < n; ++i)
            {
                count += decimalRegex.IsMatch(TestData[i]) ? 1 : 0;
            }
        };
        var paserTotal = 0.0;
        var regexTotal = 0.0;
        var runCount   = 10;

        for (int run = 1; run <= runCount; ++run)
        {
            var parserTime = PerformanceHelper.Run(10000, parser);
            var regexTime  = PerformanceHelper.Run(10000, regex);
            Console.WriteLine("Run #{2}: Decimal.TryParse: {0}ms, Regex: {1}ms",
                              parserTime.TotalMilliseconds,
                              regexTime.TotalMilliseconds,
                              run);
            paserTotal += parserTime.TotalMilliseconds;
            regexTotal += regexTime.TotalMilliseconds;
        }
        Console.WriteLine("Overall averages: Decimal.TryParse: {0}ms, Regex: {1}ms",
                          paserTotal / runCount,
                          regexTotal / runCount);
    }